usr.bin/finger/lprint.c

   1 /*
   2  * Copyright (c) 1989, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Tony Nardo of the Johns Hopkins University/Applied Physics Lab.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#)lprint.c 8.3 (Berkeley) 4/28/95
  37  * $FreeBSD: src/usr.bin/finger/lprint.c,v 1.10.2.4 2002/07/03 01:14:24 des Exp $
  38  * $DragonFly: src/usr.bin/finger/lprint.c,v 1.4 2004/09/03 19:13:23 dillon Exp $
  39  */
  40
  41 #include <sys/types.h>
  42 #include <sys/socket.h>
  43 #include <sys/stat.h>
  44 #include <sys/time.h>
  45 #include <ctype.h>
  46 #include <db.h>
  47 #include <err.h>
  48 #include <fcntl.h>
  49 #include <langinfo.h>
  50 #include <paths.h>
  51 #include <pwd.h>
  52 #include <stdio.h>
  53 #include <string.h>
  54 #include <unistd.h>
  55 #include <utmp.h>
  56 #include "finger.h"
  57 #include "pathnames.h"
  58 #include "extern.h"
  59
  60 #define LINE_LEN        80
  61 #define TAB_LEN         8               /* 8 spaces between tabs */
  62
  63 static int      demi_print(char *, int);
  64 static void     lprint(PERSON *);
  65 static void     vputc(unsigned char);
  66
  67 void
  68 lflag_print(void)
  69 {
  70         PERSON *pn;
  71         int sflag, r;
  72         PERSON *tmp;
  73         DBT data, key;
  74
  75         for (sflag = R_FIRST;; sflag = R_NEXT) {
  76                 r = (*db->seq)(db, &key, &data, sflag);
  77                 if (r == -1)
  78                         err(1, "db seq");
  79                 if (r == 1)
  80                         break;
  81                 memmove(&tmp, data.data, sizeof tmp);
  82                 pn = tmp;
  83                 if (sflag != R_FIRST)
  84                         putchar('\n');
  85                 lprint(pn);
  86                 if (!pplan) {
  87                         show_text(pn->dir,
  88                             _PATH_FORWARD, "Mail forwarded to");
  89                         show_text(pn->dir, _PATH_PROJECT, "Project");
  90                         if (!show_text(pn->dir, _PATH_PLAN, "Plan"))
  91                                 (void)printf("No Plan.\n");
  92                         show_text(pn->dir,
  93                             _PATH_PUBKEY, "Public key");
  94                 }
  95         }
  96 }
  97
  98 static void
  99 lprint(PERSON *pn)
 100 {
 101         struct tm *delta;
 102         WHERE *w;
 103         int cpr, len, maxlen;
 104         struct tm *tp;
 105         int oddfield;
 106         char t[80];
 107
 108         if (d_first < 0)
 109                 d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
 110         /*
 111          * long format --
 112          *      login name
 113          *      real name
 114          *      home directory
 115          *      shell
 116          *      office, office phone, home phone if available
 117          *      mail status
 118          */
 119         printf("Login: %-15s\t\t\tName: %s\nDirectory: %-25s",
 120             pn->name, pn->realname, pn->dir);
 121         printf("\tShell: %-s\n", *pn->shell ? pn->shell : _PATH_BSHELL);
 122
 123         if (gflag)
 124                 goto no_gecos;
 125         /*
 126          * try and print office, office phone, and home phone on one line;
 127          * if that fails, do line filling so it looks nice.
 128          */
 129 #define OFFICE_TAG              "Office"
 130 #define OFFICE_PHONE_TAG        "Office Phone"
 131         oddfield = 0;
 132         if (pn->office && pn->officephone &&
 133             strlen(pn->office) + strlen(pn->officephone) +
 134             sizeof(OFFICE_TAG) + 2 <= 5 * TAB_LEN) {
 135                 snprintf(tbuf, sizeof(tbuf), "%s: %s, %s",
 136                     OFFICE_TAG, pn->office, prphone(pn->officephone));
 137                 oddfield = demi_print(tbuf, oddfield);
 138         } else {
 139                 if (pn->office) {
 140                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 141                             OFFICE_TAG, pn->office);
 142                         oddfield = demi_print(tbuf, oddfield);
 143                 }
 144                 if (pn->officephone) {
 145                         snprintf(tbuf, sizeof(tbuf), "%s: %s",
 146                             OFFICE_PHONE_TAG, prphone(pn->officephone));
 147                         oddfield = demi_print(tbuf, oddfield);
 148                 }
 149         }
 150         if (pn->homephone) {
 151                 snprintf(tbuf, sizeof(tbuf), "%s: %s", "Home Phone",
 152                     prphone(pn->homephone));
 153                 oddfield = demi_print(tbuf, oddfield);
 154         }
 155         if (oddfield)
 156                 putchar('\n');
 157
 158 no_gecos:
 159         /*
 160          * long format con't:
 161          * if logged in
 162          *      terminal
 163          *      idle time
 164          *      if messages allowed
 165          *      where logged in from
 166          * if not logged in
 167          *      when last logged in
 168          */
 169         /* find out longest device name for this user for formatting */
 170         for (w = pn->whead, maxlen = -1; w != NULL; w = w->next)
 171                 if ((len = strlen(w->tty)) > maxlen)
 172                         maxlen = len;
 173         /* find rest of entries for user */
 174         for (w = pn->whead; w != NULL; w = w->next) {
 175                 if (w->info == LOGGEDIN) {
 176                         tp = localtime(&w->loginat);
 177                         strftime(t, sizeof(t),
 178                             d_first ? "%a %e %b %R (%Z)" : "%a %b %e %R (%Z)",
 179                             tp);
 180                         cpr = printf("On since %s on %s", t, w->tty);
 181                         /*
 182                          * idle time is tough; if have one, print a comma,
 183                          * then spaces to pad out the device name, then the
 184                          * idle time.  Follow with a comma if a remote login.
 185                          */
 186                         delta = gmtime(&w->idletime);
 187                         if (delta->tm_yday || delta->tm_hour || delta->tm_min) {
 188                                 cpr += printf("%-*s idle ",
 189                                     maxlen - (int)strlen(w->tty) + 1, ",");
 190                                 if (delta->tm_yday > 0) {
 191                                         cpr += printf("%d day%s ",
 192                                            delta->tm_yday,
 193                                            delta->tm_yday == 1 ? "" : "s");
 194                                 }
 195                                 cpr += printf("%d:%02d",
 196                                     delta->tm_hour, delta->tm_min);
 197                                 if (*w->host) {
 198                                         putchar(',');
 199                                         ++cpr;
 200                                 }
 201                         }
 202                         if (!w->writable)
 203                                 cpr += printf(" (messages off)");
 204                 } else if (w->loginat == 0) {
 205                         cpr = printf("Never logged in.");
 206                 } else {
 207                         tp = localtime(&w->loginat);
 208                         if (now - w->loginat > 86400 * 365 / 2) {
 209                                 strftime(t, sizeof(t),
 210                                          d_first ? "%a %e %b %R %Y (%Z)" :
 211                                                    "%a %b %e %R %Y (%Z)",
 212                                          tp);
 213                         } else {
 214                                 strftime(t, sizeof(t),
 215                                          d_first ? "%a %e %b %R (%Z)" :
 216                                                    "%a %b %e %R (%Z)",
 217                                          tp);
 218                         }
 219                         cpr = printf("Last login %s on %s", t, w->tty);
 220                 }
 221                 if (*w->host) {
 222                         if (LINE_LEN < (cpr + 6 + strlen(w->host)))
 223                                 (void)printf("\n   ");
 224                         (void)printf(" from %s", w->host);
 225                 }
 226                 putchar('\n');
 227         }
 228         if (pn->mailrecv == -1)
 229                 printf("No Mail.\n");
 230         else if (pn->mailrecv > pn->mailread) {
 231                 tp = localtime(&pn->mailrecv);
 232                 strftime(t, sizeof(t),
 233                          d_first ? "%a %e %b %R %Y (%Z)" :
 234                                    "%a %b %e %R %Y (%Z)",
 235                          tp);
 236                 printf("New mail received %s\n", t);
 237                 tp = localtime(&pn->mailread);
 238                 strftime(t, sizeof(t),
 239                          d_first ? "%a %e %b %R %Y (%Z)" :
 240                                    "%a %b %e %R %Y (%Z)",
 241                          tp);
 242                 printf("     Unread since %s\n", t);
 243         } else {
 244                 tp = localtime(&pn->mailread);
 245                 strftime(t, sizeof(t),
 246                          d_first ? "%a %e %b %R %Y (%Z)" :
 247                                    "%a %b %e %R %Y (%Z)",
 248                          tp);
 249                 printf("Mail last read %s\n", t);
 250         }
 251 }
 252
 253 static int
 254 demi_print(char *str, int oddfield)
 255 {
 256         static int lenlast;
 257         int lenthis, maxlen;
 258
 259         lenthis = strlen(str);
 260         if (oddfield) {
 261                 /*
 262                  * We left off on an odd number of fields.  If we haven't
 263                  * crossed the midpoint of the screen, and we have room for
 264                  * the next field, print it on the same line; otherwise,
 265                  * print it on a new line.
 266                  *
 267                  * Note: we insist on having the right hand fields start
 268                  * no less than 5 tabs out.
 269                  */
 270                 maxlen = 5 * TAB_LEN;
 271                 if (maxlen < lenlast)
 272                         maxlen = lenlast;
 273                 if (((((maxlen / TAB_LEN) + 1) * TAB_LEN) +
 274                     lenthis) <= LINE_LEN) {
 275                         while(lenlast < (4 * TAB_LEN)) {
 276                                 putchar('\t');
 277                                 lenlast += TAB_LEN;
 278                         }
 279                         printf("\t%s\n", str);  /* force one tab */
 280                 } else {
 281                         printf("\n%s", str);    /* go to next line */
 282                         oddfield = !oddfield;   /* this'll be undone below */
 283                 }
 284         } else
 285                 printf("%s", str);
 286         oddfield = !oddfield;                   /* toggle odd/even marker */
 287         lenlast = lenthis;
 288         return(oddfield);
 289 }
 290
 291 int
 292 show_text(const char *directory, const char *file_name, const char *header)
 293 {
 294         struct stat sb;
 295         FILE *fp;
 296         int ch, cnt;
 297         char *p, lastc;
 298         int fd, nr;
 299
 300         lastc = '\0';
 301
 302         (void)snprintf(tbuf, sizeof(tbuf), "%s/%s", directory, file_name);
 303         if ((fd = open(tbuf, O_RDONLY)) < 0 || fstat(fd, &sb) ||
 304             sb.st_size == 0)
 305                 return(0);
 306
 307         /* If short enough, and no newlines, show it on a single line.*/
 308         if ((uintptr_t)sb.st_size <= LINE_LEN - strlen(header) - 5) {
 309                 nr = read(fd, tbuf, sizeof(tbuf));
 310                 if (nr <= 0) {
 311                         (void)close(fd);
 312                         return(0);
 313                 }
 314                 for (p = tbuf, cnt = nr; cnt--; ++p)
 315                         if (*p == '\n')
 316                                 break;
 317                 if (cnt <= 1) {
 318                         if (*header != '\0')
 319                                 (void)printf("%s: ", header);
 320                         for (p = tbuf, cnt = nr; cnt--; ++p)
 321                                 if (*p != '\r')
 322                                         vputc(lastc = *p);
 323                         if (lastc != '\n')
 324                                 (void)putchar('\n');
 325                         (void)close(fd);
 326                         return(1);
 327                 }
 328                 else
 329                         (void)lseek(fd, 0L, SEEK_SET);
 330         }
 331         if ((fp = fdopen(fd, "r")) == NULL)
 332                 return(0);
 333         if (*header != '\0')
 334                 (void)printf("%s:\n", header);
 335         while ((ch = getc(fp)) != EOF)
 336                 if (ch != '\r')
 337                         vputc(lastc = ch);
 338         if (lastc != '\n')
 339                 (void)putchar('\n');
 340         (void)fclose(fp);
 341         return(1);
 342 }
 343
 344 static void
 345 vputc(unsigned char ch)
 346 {
 347         int meta;
 348
 349         if (!isprint(ch) && !isascii(ch)) {
 350                 putchar('M');
 351                 putchar('-');
 352                 ch = toascii(ch);
 353                 meta = 1;
 354         } else
 355                 meta = 0;
 356         if (eightflag || isprint(ch) ||
 357             (!meta && (ch == ' ' || ch == '\t' || ch == '\n'))) {
 358                 putchar(ch);
 359         } else {
 360                 putchar('^');
 361                 putchar(ch == '\177' ? '?' : ch | 0100);
 362         }
 363 }